JPS57117501A - Purification of cellulose ether and starch ether - Google Patents
Purification of cellulose ether and starch etherInfo
- Publication number
- JPS57117501A JPS57117501A JP56187932A JP18793281A JPS57117501A JP S57117501 A JPS57117501 A JP S57117501A JP 56187932 A JP56187932 A JP 56187932A JP 18793281 A JP18793281 A JP 18793281A JP S57117501 A JPS57117501 A JP S57117501A
- Authority
- JP
- Japan
- Prior art keywords
- ether
- purification
- starch
- cellulose
- cellulose ether
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 title 2
- 229920002472 Starch Polymers 0.000 title 1
- 229920003086 cellulose ether Polymers 0.000 title 1
- 238000000746 purification Methods 0.000 title 1
- 239000008107 starch Substances 0.000 title 1
- 235000019698 starch Nutrition 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B11/00—Preparation of cellulose ethers
- C08B11/20—Post-etherification treatments of chemical or physical type, e.g. mixed etherification in two steps, including purification
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
- C08B31/08—Ethers
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803044696 DE3044696A1 (en) | 1980-11-27 | 1980-11-27 | CLEANING OF CELLULOSE AND STARCH KEETHERS |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57117501A true JPS57117501A (en) | 1982-07-22 |
Family
ID=6117726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56187932A Pending JPS57117501A (en) | 1980-11-27 | 1981-11-25 | Purification of cellulose ether and starch ether |
Country Status (5)
Country | Link |
---|---|
US (1) | US4404370A (en) |
EP (1) | EP0053741B1 (en) |
JP (1) | JPS57117501A (en) |
DE (2) | DE3044696A1 (en) |
FI (1) | FI67862C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61252201A (en) * | 1985-03-15 | 1986-11-10 | ザ ダウ ケミカル カンパニ− | Purification of cellulose ether |
JPH01217001A (en) * | 1988-02-05 | 1989-08-30 | Aqualon Gmbh & Co Kg | Separation of cellulose ether |
JP2010502793A (en) * | 2006-09-09 | 2010-01-28 | ダウ ボルフ ケルロジクス ゲゼルシャフト ミット ベシュレンクテル ハフツング | Method for washing polysaccharide derivatives |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3331997A1 (en) * | 1983-09-05 | 1985-03-21 | Hoechst Ag, 6230 Frankfurt | METHOD FOR PURIFYING AQUEOUS DISTILLATION RESIDUES DURING THE TREATMENT OF LIQUIDS RESULTING FROM THE PRODUCTION OF CELLULOSEETHERS |
DE3729268A1 (en) * | 1987-09-02 | 1989-03-16 | Henkel Kgaa | METHOD AND APPARATUS FOR SEPARATING AND CLEANING CELLULOSE ETHERS AND OTHER CELLULOSE DERIVATIVES |
DE3729240A1 (en) * | 1987-09-02 | 1989-03-16 | Henkel Kgaa | PROCESS FOR CLEANING CELLULOSE ETHERS |
DE3824147A1 (en) * | 1988-07-16 | 1990-01-18 | Hoechst Ag | METHOD AND DEVICE FOR SEPARATING AND SEPARATING DIFFERENT SOLVENTS |
US5218107A (en) * | 1991-12-30 | 1993-06-08 | The Dow Chemical Company | Removal of undesirable material from water-soluble cellulose ether aqueous solutions |
US6294008B1 (en) * | 1999-04-21 | 2001-09-25 | The Dow Chemical Company | Haze-free cellulose ether capsules and process for making |
EP1574614B1 (en) | 2000-10-17 | 2015-11-11 | James Hardie Technology Limited | Method for reducing impurities in cellulose fibers for manufacture of fiber reinforced cement composite materials |
DE10057799A1 (en) * | 2000-11-22 | 2002-05-23 | Clariant Gmbh | Purifying non-ionic alkyl-cellulose ether for use, e.g. in tablet coating or film production, involves dissolving in suitable solvent, removing residues and separating purified product from solvent |
KR100461564B1 (en) * | 2001-11-24 | 2004-12-14 | 삼성정밀화학 주식회사 | A method for preparing cellulose ether |
DE602005010362D1 (en) * | 2004-11-02 | 2008-11-27 | Shinetsu Chemical Co | Process for the separation of water-soluble cellulose ethers |
DE102005017187B4 (en) * | 2005-04-13 | 2007-06-21 | Lindauer Dornier Gmbh | Continuous dryers in multi-day construction, especially for plate-shaped products |
US8309711B2 (en) * | 2009-08-07 | 2012-11-13 | Corn Products Development Inc. | Filtration of corn starch followed by washing and collection of the resultant corn starch cake |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1298961A (en) * | 1961-05-24 | 1962-07-20 | Kirklees Ltd | Countercurrent method and apparatus for washing or purifying granular materials or the like |
US3498971A (en) * | 1967-02-13 | 1970-03-03 | Allied Chem | Process for the preparation of sodium carboxymethylcellulose |
DE1801553A1 (en) * | 1968-10-05 | 1970-05-27 | Henkel & Cie Gmbh | Carboxymethyl cellulose production |
DE2017454C3 (en) | 1970-04-11 | 1974-11-21 | Wolff Walsrode Ag, 3030 Walsrode | Extractor for the continuous extraction of bulk materials |
DE2038310C3 (en) * | 1970-08-01 | 1982-04-01 | Henkel KGaA, 4000 Düsseldorf | Process and device for the continuous production of pure and dry carboxymethyl cellulose |
US3873518A (en) * | 1973-12-14 | 1975-03-25 | Dow Chemical Co | Water soluble ternary cellulose ethers |
US4048433A (en) * | 1976-02-02 | 1977-09-13 | The Procter & Gamble Company | Cellulose ethers having a low molecular weight and a high degree of methyl substitution |
US4229572A (en) * | 1979-03-05 | 1980-10-21 | The Dow Chemical Company | Purification of cellulose ether reaction product |
DE2912486A1 (en) * | 1979-03-29 | 1980-10-09 | Henkel Kgaa | METHOD FOR CLEANING COLD LUMINOUS CELLULOSE ETHERS AND USE OF THE CLEANED PRODUCTS, IN PARTICULAR IN DETERGENT AND CLEANING AGENTS |
-
1980
- 1980-11-27 DE DE19803044696 patent/DE3044696A1/en not_active Withdrawn
-
1981
- 1981-11-17 DE DE8181109731T patent/DE3166205D1/en not_active Expired
- 1981-11-17 EP EP81109731A patent/EP0053741B1/en not_active Expired
- 1981-11-25 FI FI813775A patent/FI67862C/en not_active IP Right Cessation
- 1981-11-25 JP JP56187932A patent/JPS57117501A/en active Pending
-
1982
- 1982-11-23 US US06/323,576 patent/US4404370A/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61252201A (en) * | 1985-03-15 | 1986-11-10 | ザ ダウ ケミカル カンパニ− | Purification of cellulose ether |
JPH0546361B2 (en) * | 1985-03-15 | 1993-07-13 | Dow Chemical Co | |
JPH01217001A (en) * | 1988-02-05 | 1989-08-30 | Aqualon Gmbh & Co Kg | Separation of cellulose ether |
JP2895084B2 (en) * | 1988-02-05 | 1999-05-24 | アクアロン・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・ウント・コンパニー・コマンデット・ゲゼルシャフト | Method for separating cellulose ether |
JP2010502793A (en) * | 2006-09-09 | 2010-01-28 | ダウ ボルフ ケルロジクス ゲゼルシャフト ミット ベシュレンクテル ハフツング | Method for washing polysaccharide derivatives |
Also Published As
Publication number | Publication date |
---|---|
FI67862C (en) | 1986-04-02 |
EP0053741A1 (en) | 1982-06-16 |
FI813775L (en) | 1982-05-28 |
FI67862B (en) | 1985-02-28 |
DE3044696A1 (en) | 1982-06-24 |
DE3166205D1 (en) | 1984-10-25 |
EP0053741B1 (en) | 1984-09-19 |
US4404370A (en) | 1983-09-13 |
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